The following is a numerical and graphical summary of a set of data: Choose the best description of shape for this data. The shape of this data is bimodal. The shape of this data is skewed right. The shape of this data is uniform. The shape of this data is roughly symmetrical.Answer and type up all questions, remembering to show your working. Write name and

ID on the front page. Hand in the pdf file of your assignment via the Blackboard, using

your name and ID number as file name.

For full marks, you must include a print$-$out of the $R$ code and relevant plots in your

assignment.

This assignment involves elevation data from a geographic survey of a region in Croatia. The

file croatia.rda contains two datasets: a geodata object $g$ and a standard data frame $d.$ The

output of names $()$ should be clear in both cases.

$($a$)$ Give a brief descriptive and graphical summary of the elevation data in g$.[2$ marks$]$

$($b$)$ By considering a number of trend models, argue that a trend that is linear in the coordinates

is a reasonable choice. You should consider graphical summaries of the residuals, variogram

plots, checks of directionality effects, and permutation tests. Make sure to choose a sensible

maximum distance for the variograms.

marks